
/*--------------top---------------*/
.top {
    background-image: url("../img/banner_qtah.jpg");
    height: 508px;
    /*width: 1920px;*/
    width: 1000px;
    /*height: calc(1000 * 808px / 1920);*/
    background-size: 100% 100%;
    color: white;
}

.top > div {
    display: flex;
    justify-content: center;
}

.top > div > div {
    /*border: 1px solid blue;*/
    width: 900px;
}

.top > div:nth-child(1) > div {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top > div:nth-child(1) > div > div:nth-child(2) {
    display: flex;
    align-items: center;
}

.top > div:nth-child(1) > div > div:nth-child(1) {
    width: 150px;
    height: calc(150 * 141px / 200);
}

.top > div:nth-child(1) > div > div:nth-child(1) > img {
    width: 100%;
    height: 100%;
}

/*---------------------------------*/
.top > div:nth-child(2) {
    background-color: rgb(230, 145, 55);
    height: 40px;
}

.nav {
    display: flex;
    line-height: 40px;
}

.nav > div {
    /*上下  左右*/
    padding: 0 30px;
}

/*鼠标移上去 事件*/
.nav > div:hover {
    background-color: white;
    color: rgb(230, 145, 55);
    cursor: pointer;
}

.ad {
    /*background-color: red;*/
    height: 360px;
    display: flex;
    /*justify-content: center;*/
    align-items: center;
}

.ad > div {
    /*background-color: green;*/

}

.ad > div > div:nth-child(1) {
    font-size: 40px;
    display: flex;
}

.ad > div > div:nth-child(1) > div:nth-child(2) {
    margin: 0 20px;
}

.ad > div > div:nth-child(2) {
    font-size: 10px;
}

.ad > div > div:nth-child(2) > div {
    /*margin: 5px 0;*/
    line-height: 20px;
}

.ad > div > div:nth-child(3) > div {
    display: flex;
    align-items: flex-end;
    color: rgb(230, 145, 55);
    font-size: 30px;
}

/*pw{*/
/*    color: white;*/
/*    font-size: 20px;*/
/*}*/
/*.sh{*/
/*    margin: 0 20px 0 0;*/
/*}*/
/*!*div[pw]{*!*/
/*.pw {*/
/*    color: white;*/
/*    font-size: 20px;*/
/*}*/
/* 逗号  分组选择器*/
/*奇偶数   odd奇数  even 偶数*/
.ad > div > div:nth-child(3) > div:nth-child(1) > div:nth-child(odd) {
    color: white;
    font-size: 20px;
}

/*.ad > div > div:nth-child(3) > div:nth-child(1)>div:nth-child(3){*/
/*    color: white;*/
/*    font-size: 20px;*/
/*}*/

.ad > div > div:nth-child(3) > div:nth-child(2) > div:nth-child(1) {
    /*margin-left: 50px;*/
    /*em  相对于当前字符 3个字符*/
    /*text-indent 缩进*/
    text-indent: 1.8em;
}
